Potewar, T. M., Kathiravan, M. K., Chothe, A. S., & Srinivasan, K. V. (2011). An improved synthesis of the alkaloid Luotonin-A employing ionic liquid and water as key solvents. European Journal of Chemistry, 2(2), 235–237. https://doi.org/10.5155/eurjchem.2.2.235-237.205